Supported blades for use in shaving systems are disclosed. The supported blades include a blade support having a surface that is coated with aluminum. The aluminum coating is on a portion of an outer surface of the blade support or on the lower surface of the blade support or covering the entire lower surface of the blade support. The aluminum coating is less than 5 μm thick and is made of substantially pure aluminum. By providing aluminum coating, corrosion is prevented without the need for aluminum clips. The supported blades may be mounted in a blade unit housing without clips within a cartridge which can be mounted on a detachable or permanent handle of a shaving razor.